Prepare the brownie recipe, with one exception: Instead of pouring the mixture into a rectangular or square pan, pour it into a lightly greased (and clean!) 12-inch pizza pan.

Bake, in an oven preheated to 350 degrees, for 20 to 30 minutes or until a knife inserted in the middle comes out clean. Cool.

Meanwhile, mix up the red frosting "sauce." In a large bowl, cream the confectioners' sugar and butter.

Add the milk and vanilla extract and beat until smooth. Add 1/2 to 1 teaspoon of red food coloring paste and mix until you have the desired shade (think tomato sauce). Use a spatula or knife to spread the sauce evenly over the cooled "pizza."